Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 37 for “"stochastic demand"”.
-
Pre-bid network analysis for transportation procurement auction under stochastic demand
… formation when loads are known in advance. Since demand is random in real life, we perform a stochastic analysis of the problem using various techniques including simulation, probabilistic analysis and stochastic programming. Results from the stochastic analysis show that the effectiveness of …
-
Collaborative En Route Airspace Management Considering Stochastic Demand, Capacity, and Weather Conditions
… airspace restrictions. The projected growth in demand for airspace is expected to worsen this congestion while reducing system efficiency and safety. This dissertation focuses on providing methods to analyze en route airspace congestion during severe convective weather (i.e. thunderstorms) in an …
-
Computing the policy parameters for perishable inventory management and cold supply chains under stochastic demand
… supply chains with environmental concerns under stochastic demand, as well as tackling and dealing with the demand uncertainty and fluctuations arising from the nature of demand patterns. The solutions we present in this dissertation for the perishability problem hybridises the well-known …
-
Optimal satellite constellation spare strategy using multi-echelon inventory control with stochastic demand and lead times
… also resupplied from the ground (supplier) with stochastic lead time caused by the order processing and launch opportunities, leveraging the cost saving effects by launching many satellites in one rocket (i.e., batch launch discount). The proposed model is validated against simulations using …
-
Applications of risk pooling for the optimization of spare parts with stochastic demand within large scale networks
Amazon is able to deliver millions of packages to customers every day through its Fulfillment Center (FC) network that is powered by miles of material handling equipment (MHE) such as conveyor belts. Unfortunately, this reliance on MHE means that failures could cripple an entire FC. The …
-
Algorithms for bundling and pricing trucking services: Deterministic and stochastic approaches
… of lanes and the carriers have to bundle demand and price it properly. This dissertation explores several dimensions of the problem employing state-of-the-art analytical tools. These dimensions include: Truckload (TL) and less-than-truckload (LTL) operations, behavioral attributes driving …
-
Sustainability analysis in integrated inventory control and transportation systems
… problem in a single item deterministic demand setting. A supply chain agents inventory control and transportation mode selection problem is solved under carbon cap, carbon cap and trade, carbon cap and offset, and carbon tax regulations. The second model focuses on an integrated …
-
Optimizing procurement and handling costs in a utility
… under conditions of both deterministic and stochastic demand. We show that case pack quantity held in inventory greatly impacts supply chain costs. We also find the novel result that the optimal material picking policy for both deterministic and stochastic demand is a threshold policy …
-
Variations on the integrated inventory and transportation problem
… in fixed partition routing problems with stochastic demand"--Abstract, page iii.
-
Modeling, Analysis, and Algorithmic Development of Some Scheduling and Logistics Problems Arising in Biomass Supply Chain, Hybrid Flow Shops, and Assembly Job Shops
… Hybrid Flow Shop Scheduling Problem, and Stochastic Demand Assembly Job Scheduling Problem. The Biomass Logistics Problem is a strategic cost analysis for setup and operation of a biomass supply chain network that is aimed at the production of ethanol from switchgrass. We discuss the …
-
Inventory deployment and market area segmentation in a two-echelon distribution network design
… the two-levels. Allocation of stock under a stochastic demand structure is considered simultaneously with warehousing and transportation decisions, which is an extension of the General Optimal Market Area (GOMA) Model developed by Erlenkotter. The distribution of inventory is investigated …
-
Optimization of satellite constellation deployment strategy considering uncertain areas of interest
… the areas of interest over time. The constructed stochastic demand model considers multiple possible scenarios for the evolution of the areas of interest with probabilities based on the market share growth in each area. The optimization aims to find each stage’s design with minimum expected …
-
Inventory consideration and management in two supply chain problems
… of plants. Each customer in this problem has stochastic demand and a certain amount of safety stock must be maintained in warehouses so as to achieve a certain customer service level. The problem is to determine the number and locations of warehouses, allocation of customers demand and …
-
Inventory segmentation and production planning for chemical manufacturing
… multiple items on a single processor under stochastic demand that minimizes total setup and inventory holding costs is an important problem. This problem is faced in many continuous production environments such as chemical or petrochemical production, where the costs of switching production …
-
Essays on variational inequalities and competitive supply chain models
… the retailer faces exogenous, price-dependent, stochastic demand. We analyze discrete as well as continuous time versions of the model: (i) we illustrate the existence of equilibrium policies; (ii) we characterize the structure of these policies; (iii) we consider coordination mechanisms; and …
-
Multi-echelon multi-product inventory strategy in a steel company
… production-inventory system subject to stochastic demand in the steel industry. The sponsor company, Ternium (a South American steel producer), needs to provide short service times under low inventory costs. The goal of this thesis is to generate a model and conclusions to determine …
-
Managing variability to improve quality, capacity and cost in the perioperative process at Massachusetts General Hospital
… more effectively characterizing and managing the stochastic demand of non-elective surgical cases, this policy will dramatically reduce delays and open capacity for higher case volume. Specifically, it will reduce the number of non-elective surgical patients exceeding maximum recommended wait time …
-
Modeling the semiconductor industry dynamics
… is an exciting and challenging industry. Strong demand at the application end, plus the high capital intensity and rapid technological innovation in manufacturing, makes it difficult to manage supply chain planning and investment in technology transitions. Better understanding the essence of the …
-
Dynamic inventory management with expediting
In modern global supply chains, goods travel stochastically from suppliers to their final destinations through several intermediate installations such as ports and distribution facilities. In such an environment, the supply chain must be agile to respond quickly to demand spikes. One way to achieve …
Page 1 of 2